Mobile storage shelf



FIG. 1 is a perspective of the mobile storage shelf;

FIG. 2 is a side view of the mobile storage shelf;

FIG. 3 is a front view of the mobile storage shelf;

FIG. 4 is a rear view of the mobile storage shelf;

FIG. 5 is a side view of the mobile storage shelf opposite to the side fully shown in FIGS. 1 and 2; and,

FIG. 6 is a top view of the mobile storage shelf. 

The ornamental design for a mobile storage shelf, as shown. 